Level skip:
Enter RA50 as a name at the bike selection screen in extreme contest mode. Begin game play, then press Start to pause the race. Select the Quit option and choose Yes to confirm. Select the "Go" option at the placing screen to advance to the next level.

Race as programmers:
Successfully complete mirror mode under the hard difficulty setting to race as one of the XG2 Bikers.

Enter following codes as a name at the bike selection screen in extreme contest mode. The word "Extreme" will be spoken to confirm correct code entry. Enter this code again to return to normal mode.